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package HTTP::OAI::ListSets;
@ISA = qw( HTTP::OAI::PartialList );
use strict;
sub set { shift->item(@_) }
sub start_element
{
my ($self,$hash, $r) = @_;
if( $hash->{Depth} == 3 && $hash->{LocalName} eq "set" )
{
$self->set_handler(HTTP::OAI::Set->new);
}
$self->SUPER::start_element($hash, $r);
}
sub end_element
{
my ($self,$hash, $r) = @_;
$self->SUPER::end_element($hash, $r);
if( $hash->{Depth} == 3 && $hash->{LocalName} eq "set" )
{
$r->callback( $self->get_handler, $self );
$self->set_handler( undef );
}
}
1;
__END__
=head1 NAME
HTTP::OAI::ListSets - Provide access to an OAI ListSets response
=head1 SYNOPSIS
my $r = $h->ListSets();
while( my $rec = $r->next ) {
print $rec->setSpec, "\n";
}
die $r->message if $r->is_error;
=head1 METHODS
=over 4
=item $ls = new HTTP::OAI::ListSets
This constructor method returns a new OAI::ListSets object.
=item $set = $ls->next
Returns either an L<HTTP::OAI::Set|HTTP::OAI::Set> object, or undef, if no more records are available. Use $set->is_error to test whether there was an error getting the next record.
If -resume was set to false in the Harvest Agent, next may return a string (the resumptionToken).
=item @setl = $ls->set([$set])
Returns the set list and optionally adds a new set or resumptionToken, $set. Returns an array ref of L<HTTP::OAI::Set|HTTP::OAI::Set>s, with an optional resumptionToken string.
=item $token = $ls->resumptionToken([$token])
Returns and optionally sets the L<HTTP::OAI::ResumptionToken|HTTP::OAI::ResumptionToken>.
=item $dom = $ls->toDOM
Returns a XML::DOM object representing the ListSets response.
=back
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